【摘要】：特高壓輸電技術(shù)是當前國家電網(wǎng)發(fā)展戰(zhàn)略的需要,隨著線路電壓等級的不斷提升,站間跨距越來越大,而光信號會隨著傳輸距離的提升而衰減增大,這為電力系統(tǒng)通信帶來了新的難題,所以對于可靠的長距離光傳輸系統(tǒng)的研究對電網(wǎng)建設(shè)具有極其重要意義。本文主要從線路損耗、色散和光信噪比受限3個方面對電力系統(tǒng)超長站距光傳輸?shù)年P(guān)鍵問題進行研究,設(shè)計通過光中繼和遙泵(無光中繼)兩種方式實現(xiàn)400km超長站距光傳輸,尤其是提出一種安置在塔中的“自給”式獨立供電的光中繼設(shè)備實現(xiàn)超長站距光通信方案,并在哈密至鄭州±800千伏特高壓線路(石城-環(huán)縣段)對單波10G光傳輸系統(tǒng)進行部署和測試。前期對鏈路損耗、接頭損耗、色散損耗以及設(shè)備的接受能力進行了詳細的演算,確定了工程中光放大器及增益單元的預(yù)定距離。課題實施過程中,依據(jù)前期測算在符合光損耗限度區(qū)域內(nèi)確定了安置光中繼站和喇曼遠程增益單元的桿塔位置,并在實際生產(chǎn)環(huán)境下對系統(tǒng)進行部署和驗證。兩套系統(tǒng)均實現(xiàn)了400km以上的傳輸距離,課題最后對兩個系統(tǒng)進行了測試和對比。課題研究結(jié)果表明,可以實現(xiàn)特高壓線路中變電站與變電站之間超長站距的光通信傳輸,對于未來工程建設(shè)和方案的設(shè)計推廣具有實際意義。
[Abstract]:UHV transmission technology is the need of the current national power grid development strategy. With the continuous upgrading of line voltage, the span between stations becomes larger and larger, and the optical signal will decay with the increase of transmission distance. This brings new difficulties to power system communication, so the study of reliable long distance optical transmission system is of great significance to power grid construction. In this paper, the key problems of ultra-long station distance optical transmission in power system are studied from three aspects: line loss, dispersion and limited optical signal-to-noise ratio. The 400km ultra-long station distance optical transmission is realized by optical relay and remote pump (non-optical relay). In particular, a "self-contained" independent power supply optical relay device installed in the tower is proposed to realize the super-long distance optical communication. The single-wave 10G optical transmission system was deployed and tested on the 鹵800 kV UHV line from Hami to Zhengzhou (Shicheng-Huanxian section). The link loss, joint loss, dispersion loss and the receptivity of the equipment are calculated in detail, and the predetermined distance between the optical amplifier and the gain unit in the engineering is determined. During the implementation of the project, the position of the pole tower of the optical relay station and Raman remote gain unit is determined in accordance with the limit of optical loss according to the previous calculation, and the system is deployed and verified in the actual production environment. The transmission distance above 400km is realized in both systems. Finally, the two systems are tested and compared. The research results show that the optical communication transmission between substation and substation in UHV transmission line can be realized, which is of practical significance for future engineering construction and scheme design and popularization.
【學位授予單位】：華北電力大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TN929.1;TM73

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